Regeration Try Try Again Oil and Gas
What Causes DPF Regen Cycles & How to Reduce Them
August 22, 2021
What Does DPF Stand For & What Does it Practise?
The Diesel Particulate Filter (DPF) is an help in emissions-control included within diesel fuel exhaust systems, to take hold of the remaining particulates left within the combustion bike of the diesel fuel engine. Each combustion cycle within a diesel engine includes un-burnt components of diesel, carbon, and other particulates that accumulate into visible smoke from the frazzle stacks. Amidst other components along the manner, the DPF captures many of these particulates, helping eliminate the 'muddied exhaust' emanating into the air.
Every bit an exhaust component that is continually clogging from the perpetual operation of a diesel fuel truck, this filter is congenital into a system where information technology essentially cleans itself of the buildup. In doing so the filter can more efficiently capture particles within exhaust gases and more easily laissez passer through the airflow from intake to output, causing less stress on the engine itself.
"A regeneration cycle occurs by essentially 'cooking' the filter clean once again," says Kyle Nace of Response Equipment Specialists (Kalispell, MT). "The DPF Regen contains the estrus of the exhaust, calculation up to temperatures exceeding 1000 degrees Fahrenheit, so that the filter is depleted of its buildup and returns to proper operation capabilities."
What Are DPF Regeneration Cycles?
An active regen cycle is a normal process that takes place as the truck is going down the road. A figurer sensor monitors the DPF and a dashboard indicator lite notifies the driver that the regen is taking place, or the DPF is at present cleaning. "You'll observe a reduction in power during a regen," notes Nace. "You tin sometimes hear a 'hissing' type racket, or a different sound from the engine." First time diesel owners often think there is something wrong with their trucks, but the DPF regen is a normal, often recurring, requirement included with diesel fuel ownership.
A forced regeneration cycle is a transmission procedure that takes place at the diesel shop with a certified technician initiating the cleaning of the DPF. "Nosotros strength the truck'southward estimator to initiate the process prior to the parameter requests that happen with the agile regen," says Nace. "These circumstances happen when the owner/technician recommends a regen prior to the automated process. If something happens that indicates a necessity, or to simply avoid the procedure while driving, we can override the system to regen."
How To Tell When a DPF Cycle Occurs?
Depending on the manufacturer and the gauges installed in the truck, the driver may notice an increase in exhaust back-pressure, and/or simply a lack of performance.
"When the engine is being choked down with a clogged filter, the commuter may recognize but a lack in operation, throttle response, and ability," says Kyle. "The diesel engine is essentially a compressor in the airflow. With the efficiency of drawing that air into the truck for the combustion and so releasing it through the exhaust, it'due south imperative that the to the lowest degree corporeality of restriction exists for enhanced performance of the motor."
If the DPF regen bike is non taking place, or not completing a full bicycle, a check engine low-cal might illuminate on your dash. In doing so the many sensors in the system volition calculate the particulates prior to the DPF and mail, recognizing a lack in the functioning of the DPF. "With the accuracy in modern computerization and the rigs that command that whole system, it'due south something you want to pay attention to and accost relatively soon before you enter 'limp mode' or 'De-charge per unit' where the truck will not operate over twenty to 30 mph in some cases."
If the exhaust gas recirculation (EGR) organisation is failing, with improper recirculation of the frazzle, the truck runs with a lot more particulate and a lot more than soot, therefore likewise clogging the DPF even more. "The entire system relies on the engine running well and doing everything possible to avoid repair or replacement of the DPF," says Kyle. "An exhaust arrangement is incredibly expensive and susceptible to abuse just like anything else. And with the fragile condition of the DPF itself, the less regens required, the better."
How Long Does It Take for DPF to Regenerate?
Unfortunately, there is no predefined number of regens to be expected. Depending on the maintenance and upkeep of the truck, there may be less regens required with proper maintenance and attention to your truck'south full general upkeep. If the engine is underperforming and a continual muddied exhaust is occurring, then many regens may be required. Multiple regen cycles tin happen per day if a truck is in heavy operations. And with multiple regens come mounting costs and interruptions in daily use.
"Information technology depends on each private truck," says Kyle. "It all comes down to how efficiently that truck is running. From the quality of the fuel it's burning to the additives that are being added to preserve the quality of the injectors, to improving the cetane in the fuel system, to changing the filters; These all affect the cleanliness of the fuel burn, therefore the cleanliness in the combustion, which determines the quality and the quantity of the exhaust being produced, which so may or may not clog the DPF." Clean exhaust patently is a by-product of the care that goes into the fuel tank and the treatment of that fuel, from the pump to the frazzle stacks. Nace says "the dirtier and more rich exhaust y'all produce, the faster it'due south going to clog your DPF, therefore requiring another regen cycle."
How to Reduce DPF Regens
Stiction is the mucilaginous friction caused by byproducts of burnt oil. High force per unit area builds estrus in tight-tolerance applications and extreme oestrus causes the oil to burn down, oxidize and create layers of sludge and deposits. Fuel injectors, pistons, rings, and a variety of other engine components are continually susceptible to this stiction buildup. All of which are the enemy of any clean and efficient mechanical organisation. When oxidization, layers of sludge, carbon, and deposits course throughout the engine, additives are an imperative demand to clean the parts. The proper oil additives clean the gum, varnish and stiction while also lubricating everything the oil touches in your engine. Only the proper additives as well practice so with no harsh solvents that potentially harm engine components. Specific to the DPF, the correct additives properly clean the engine parts and reduce the number of particulates clogging the DPF, thereby reducing multiple regen cycles.
The proper additives also help restore dynamic pinch with an increased ring seal. The tighter seals provide improved combustion efficiency, thereby translating to not but better fuel economy, engine power, and a better running engine, merely also the efficiency required in the combustion wheel to prevent blow-by and added particulates flowing through the exhaust system. The proper combination of additives can provide non only a better running truck, just an extremely helpful deterrent to unexpected repairs and replacements in the future.
Specific to diesel fuel engines, the proper additives also restore the lubricity that has been refined out of the ultra-low sulfur diesel purchased at the fuel pumps. With the proper lubricity returned to the fuel system, however, mechanical parts are then more fluid in their operations with less friction. With less friction, the corporeality of wearable and tear is reduced, better maintaining the tolerances of machined parts for a cleaner burn and more complete combustion cycle.
Virtually diesel engines operate more efficiently with a fuel that has a cetane rating of 48 to 50. Fuels with higher cetane burn more than efficiently and completely than those with lower cetane ratings. The proper DPF fuel additives contain a cetane improvement to reduce hydrocarbons and particulate matter in your frazzle. The cetane booster in Hot Shot's Cloak-and-dagger Diesel Extreme, for instance, promotes more complete combustion, fewer emissions, and therefore fewer DPF regens. Trucks using Diesel Extreme have been shown to have 83% less DPF regens.
"We see a lot of Cummins motors in our area for maintenance, in addition to heavy trucks. We rely heavily on the the Diesel Duo from Hot Shot'due south Secret. It contains two 64oz bottles of Stiction Eliminator and Diesel fuel Farthermost, which provide an incredible solution to helping our customers with a diverseness of diesel issues," says Nace. "We've saved several customers injector jobs, and/or had customers come to us that accept already spent thousands of dollars on replacements or servicing their DPF organization, their injectors, their EGRs and trying to effigy out why they are constantly going into a regen bicycle. We've used these additives and inside m miles nosotros see the consummate resolve in many of these issues. It'southward really been incredible for us."
The Science Behind Hot Shot's Products to Reduce DPF Regen Cycles
Hot Shot's Secret is working to continually provide the best additives on the market. With scientific testing in the lab, in conjunction with real-globe testing in the field, many of the top diesel experts larn and save from Hot Shot's Secrets testing results. In a by field study, Hot Shot's Secret helped save the city of Columbus, OH thousands of dollars annually in fuel and labor costs directly related to regen cycles. With an additives investment of $200 in 2 city test trucks, regen cycles were reduced from 36 annually to only 6!
"We have a customer that offers a delivery service for rental equipment," states Kyle. "They were experiencing DPF regen cycles almost daily. They had sent their main truck to another shop and had the whole system replaced, to the tune of well-nigh $8000. It didn't prepare the problem at all. When they came to united states of america for an oil alter, nosotros added our Hot Shot'south Secret additives and within about a week, they saw reductions in their regen cycles and within a month, they had no more issues at all.
We also had a mobile abode mover which had their injectors replaced about a year previous, and it was just pumping white smoke out the exhaust and missing like it needed injectors again. Same thing; we ran both the Stiction Eliminator and the Diesel Extreme additives from Hot Shot'due south Secret, and within a couple weeks, our customer was loading his truck again and noticed the miss and smoke were gone. That's been probably eight months ago and he hasn't been dorsum. When we don't hear dorsum, we consider that 'no news is skillful news'. Or when they practise report back that its running improve, and we don't run across them back in the shop for repairs, we chalk that upwards as a success."
Testimonial:
"There are a million (additives) products out at that place and nosotros've tried nigh all of them. When I plant out about Hot Shot's Undercover at a Diesel event a couple years ago, I soon realized that Hot Shot'due south has a claim just like anybody else. And when I await into new products, I try and test these claims and utilise these products myself, before I ever represent them for my customers. So my shop foreman, lead fabricator and I used these additives in our own trucks. Within a week we all noticed a significant comeback and have always since and so, felt comfortable attaching our name to these products and representing something that is real, and something that does piece of work. We continue to have neat results."
Kyle Nace
Response Equipment Specialists, LLC
Source: https://www.hotshotsecret.com/dpf-regen-cycles-explained/